Teacher - Graphic calculator is a powerful assistant in teaching. Taking TI graphing calculator as an example, it can accurately calculate and visually draw graphs. Capable of systems such as symbolic algebra, geometric operations, and data analysis, able to draw various graphics and dynamically demonstrate them. It is compact and portable, making it convenient for teachers to demonstrate in class and prepare lessons outside of class. It can also interact with computers and other calculators through data cables. Its function closely conforms to the outline of middle school mathematics textbooks, covering key and difficult chapters such as algorithms, probability, statistics, etc. It is an efficient tool for optimizing mathematics teaching and cultivating students' thinking